Thrashing attachment for binders



- March 10, 1931. DECKER 1,796,088

THRASHING ATTACHMENT FOR BINDERS Filed Jan. 22, 1929 4 sheets-sheet 1 Inventor T120 Jjsc/Ier Attarnqy March 10, 1931. DECKER 1,796,088

THRASHING ATTACHMENT FOR BINDERS Filed Jan. 22, 1929 4 Sheets-Sheet 2 In ventar March 10, 1931. F. J. DECKER THRASHING ATTACHMEN'f FOR BINDERS Filed Jan. 22, 1929 4 Sheets-Sheet 3 Inventor jza 1 J cder Attormgy March 10, 1931. DECKER 1,796,088

THRASHING ATTACHMENT FOR BINDERS Filed Jan. 22. 1929 4 Sheets-Sheet 4 Q N N 2 i 1 h I I x &

Inventor JZZa Jje: C/Ier Attorney Patented Man'lO, 1931 UNITED STATES PATENT OFFICE FILO J. DECKER, OF MARTINSVILLE, MISSOURI, ASSIGNOR 0F FORTY PER CENT TO G. H. COCHRAN, OF KANSAS CITY, MISSOURI THRASHING ATTACHMENT FOR- BIND BBS Application filed January 22, 1929. Serial No. 334,333.

.The present invention relates to improvements in harvesting machines and has reference more particularly to a thrashing attachment for grain binders.

One of the important objects of the present invention is to provide a grain thrashing attachment comprising aunitary structure that will at all times be positive and eiiicient in its operation, the same being further of such construction as to facilitate its association with a binder without necessitating any material alterations of the binder.

A further object is to provide a thrashing attachment for binders wherein means is provided whereby the operator of the machine can effect the operation of the separator unit that includes a rotary drum, without having to leave his seat.

A further object is to provide a thrashing attachment for grain binders that includes means for tightening the strings to take up any slack that may occur therein, additional means being provided whereby the rotary drum of the separator unit may be operated by the bull wheel of the binder.

Other objects of the invention will become apparent as the nature of the invention proceeds and when taken in connection with the accompanying drawings.

In the accompanying drawings, forming a part of this application and wherein like reference characters designate like parts throughout the several views:

Figure l is a top plan viewofa conventional grain binder showing my improved thrashing attachment associated therewith.

Figure 2 is an elevational view of the attachment looking at one side thereof.

Figure 3 is a longitudinal sectional view through the attachment.

Figure dis a vertical section taken approximately on the line 47- 4 of Figure 3.

Figure 5 is a similar section taken on the line 5-5 of the same figure.

Figure 6 is a detail of the clutch that is controlled by the foot pedal.

Figure 7 is a detail elevational view of the chain tightening mechanism, and

Figure 8 is a view similar to Figure 6, showing the hand operated clutch that is associat'ed with the drum supporting shaft at one end thereof.

In the drawings, wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 designates generally a conventional grain binder, the grain that cut by the cutting mechanism shown at 2, being delivered upon the conveyor 3, which conveyor carries the cut grain onto the conveyor 4. This last mentioned conveyor is disposed directly over the endless conveyor 5 of my improved attachment which conveyor is mounted within a frame 6 supported at the rear end of the attachment constitutingthe present invention. The attachment per se is denoted generally the reference character 7 and the same is adapted to be mounted on the side of the binder 1, in lieu of the usual stacking or binding mechanism usually associated with a grain binder.

A rectangular shaped casing 8 is included as a part of the thrashing attachment, the same being supported on the frame 9 at the rear end of which frame there is arranged the platform 10 and from which platform extends upwardly the seat supporting bracket 11, the seat being shown at 12 in Figure 2. A pivoted foot treadle 13 is also arranged on the platform 10, for a purpose to be presently described.

,Arranged within the top portion of the rear end of the casing 8 is a separator unit that in cludes a cylinder 14; of sectional construction, the top section being hinged for vertical swinging movement as at 15. Teeth 16 are arranged on the inner face of the sections of this cylinder and cooperating with these teeth are theteeth 17 that extend radially from the drum 18 arranged for rotation within the cylinder and this drum is secured on a shaft 19 that extends centrally through the respec tive ends of the cylinder. The means for drivin the shaft and the drum secured thereon will be described in detail later.

The cylinder 14 is formed at one side-with an inlet 20 with which cooperates the discharge end of the endless conveyor 5 for receiving the material to be separated. The bottom of the cylinder 14 is open to permit the an inclined deflector plate 21,t hat has cooperation with the upper endless conveyor '22 and the screen 23 associated therewith. The end of the casing 8 remotefrom the rotary drum and its cylinder is fermed with anoutlet opening "24, whereby the endless conveyor 22 will carry off the straw whilethe grain will fall through the screen 23 onto the underlying unit 25, thatfincludes an endless conveyor 26 and the imperforate plate 27 over which the upper flight of the endless conveyor 26 travels and the grain falling on the plate '2? is'carried toward the discharge mouth '28 that has communication with the grain receiving compartment 29 and air is toroed through the grain in the compartment 29 through the medium of the blower 'fan30 and thelconduit 31 as'shown veryclearly in Figured in this manner, all chaifl? will be blown out of the grain through the mouth 28 outwardly of the casing :8. A discharge neck 32 extends from the bottom of the compartment 29 and a sackor'the like imp-laced around'this neck for receiving the :grain.

Access to the endless units arranged within the forward portion of the casing '8 is had through an opening provided therefor in the top o-f the forwardendportionof said casing, a hinged door 33 normally 'c'losingthis openin ablecasingl d, and one endof the shaft'upon which the blower fan is mounted extends through the adjacent end ef the -casi ngand i the adjacent Eside of the casing in alignment with the sprocket wheel 37 and thesproc'ket wheel 39 secured on the outer end of "the h'lowerfa'n supporting shaft,.anditrainedlover these aligned sprocket wheels is'the sprocket chain a0. 'hleansis provided for takingup the slack in this chain 40 and'to ithis rend I pro- .'vide :t-he-pivoted. lever 41 that carries a sprocket wheel 4:2.adjacent-itsmiv ted'end and this sprocket wheel engages with the sprocket chain l0r as clearly indicated in' the drawings. In addition, means is provided for maintainingithepivotedkleverin any'adjusted position and this adjusting means is-shown est 'tothese'parator cylinder and over which is trained the endless conveyor be'lt 5, a

sprocket chain being arranged over the O.- V V a llhe blower fan 30*is mounted within asu1tlast mentioned pair of sprocket wheels whereby the endless conveyor 5 is actuated simultaneously with the operation of the rotary drum 18. I

A remotely operated clutch mechanism shown generally at 45 is associated with the aforementioned end of the shaft 219 and the pivoted .bell crank lever a6 that actuates this clutch is operated by a cable 47 and is at- -'tache zl-t-o' the pivotedtreadle 5- a r The shaft 1 9 is driven from the bull wheel 48' of the grain binder by means of the sprocket chain 49 and a manually operable clutch mechanism shown generally at 50 in vFigure S is associated with this end of the shaft 19 for throwing the same into or out of cooperative engagement with the bull wheel of the binder. The hand lever for actuating this clutch mechanism is shown at 51', also in Figure 8.

For the purpose of taking up the slack in the sprocket chain 29, there is provided the slack adjuster shown at 52 in Figure 7, and the same includes the'pivoted lever 53 carrying an arm 54iontheouter=end of which isar- 1 ranged the sprocket wheel 55 that engages with the sprocket chain 48. It is of course understood that the bull wheel is arranged on the shaft 56 and :that :a sprocket wheel is secured on this shaft for cooperation with the sprocket chain 48. l r The endless conveyor el is adapted tobe driven by operatively connecting the same with thexdriving mechanism provided for the endless conveyor 3"and this arrangement is clearly shown in Figure l lfides'iredya l'sma'll electric motor may arranged on "the platform 10 for independently- :actuating the'movable :parts of the thrashing attachment. It mi'ghtwalso bea :wellI to mention at this point that the sprocket chain L0 cooperates with suitable sprocket wheels 5'6, and 57, arranged on the 'oute'r ends of the-shaft of the upper and lower grain-separatingunits arranged in the casing '8' for effecting the actuation of *th endless conveyors of these units.

A thrashing attachment of the above mentioned character ycanibe readily and easily installed after the binding mechanism has been removedffrorn the binder and the attachment will .at all timesbe positive and efficient incarrying out the purposes for which it is designed. ,7

Furthermore the clutch mechanism will act as a safety device for the rotary drum and the cylinders within which the drum operates so that thispart-of the machine will :not be broken or become clogged up,

While I have shown the preferredembodianent ofm-y invention, it is to be understood that various changes in the .si'ze, sha pe and arrangement of parts may be resorted to, without departing from the spirit of the invention or the scope of the appended claim.

I claim: In a thrashing attachment for binders, a unitary structure comprising a supporting frame, a casing mounted on the frame, a cylinder open at its bottom arranged on the top of the casing, teeth arranged on the inner side of the cylinder, a toothed drum mounted for rotation in the cylinder, said cylinder being formed in the side with an inlet, a conveyor arranged on the casing for receiving the grain from said binder and delivering the same to the inlet in the cylinder, separating units arranged within the casin ]5 adapted to receive the material discharged through the bottom of the cylinder, a grain receiving compartment arranged below said separator units, a. blower fan having communication with the compartment, a trash 2O outlet for association with the separating units and the grain compartment, means for operating all of the movable parts, said separating units including upper and lower spaced plates, the upper plate being perforated, and endless conveyors arranged around said plates, said casing being provided with a tapered discharge mouth adjacent one end of the lowermost separator unit, the upper wall of said discharge mouth so constituting a discharge chute for the upper separator unit, said upper separating unit extending forwardly beyond the lower separating unit.

In testimony whereof I afiix my signature. :as FILO J. DECKER. 

